HARTNEY GREYMONT - Key Persons


Adam Cervin

Job Titles:
  • District Manager, Needham Office

Christopher Griffin Lawn

Job Titles:
  • Worker
  • Department Coordinator
Christopher Griffin can be described as a diligent worker and a self-starter who has an aptitude for sales and client service. Joining Hartney Greymont in 2015, Christopher started in the industry as a lawn care technician. Now a sales and service technician, Christopher focuses on routing lawn care technicians, day-to-day servicing for lawn care clients, and sales. Christopher received his UMass Green School turf management certification, has his Massachusetts pesticide license, and is a 2018 graduate of the Davey Institute of Tree Sciences (DITS).

Daniel Cohen

Job Titles:
  • Asst. District Manager & Sales Manager, Needham Office
Daniel Cohen has gained invaluable technical knowledge about trees since entering the field in 2004. Paired with his real passion for trees, Daniel has grown into his role at Hartney Greymont, starting in the ground crew and more recently taking on the roles of assistant district manager of the Needham office and sales manager. In his roles, Daniel oversees all of the sales arborists in the Needham office and focuses on clients in the Brookline and Boston territories. Daniel has a bachelor's degree in urban forestry and an associate's degree in arboriculture. He is a Massachusetts certified arborist, ISA board certified master arborist, tree risk assessment qualified, Massachusetts certified landscape professional, Massachusetts certified horticulturist and has a Massachusetts core pesticide applicator license.

Daniel Hager

Job Titles:
  • Asst. District Manager, Concord Office

George Barth

Job Titles:
  • Plant Healthcare Manager, Needham Office

James Willey

Job Titles:
  • Asst. District Manager - Tree & Landscape Operations, Needham Office
James Willey is a versatile member of the Hartney Greymont team who as an assistant district manager handles management of all field and staff, running the tree and landscape departments, hiring and onboarding new employees, and working with sales staff to coordinate crews and equipment for upcoming jobs. He is also an accomplished mason and landscape contractor with over 20 years of experience. He is also an ISA Certified Arborist and holds an Interlocking Concrete Pavement Institute (ICPI) certification. His previous role as landscape department manager required involvement in each landscape project that passed through the Needham office. James was involved in crucial design decisions, responsible for deploying the right team and equipment, and always kept an eye on quality, so the final product resonates with the client. He believes what sets Hartney apart from other companies is attention to detail and commitment to hiring and retaining quality employees.

Josh Fritz

Job Titles:
  • District Manager for the Hartney Greymont 's Concord
  • District Manager, Concord Office

Steve Mercer

Job Titles:
  • District Manager, Cape Cod Office